The i3 Standard


Developed by public safety professionals, the i3 standard describes protocols, interfaces and systems required to ensure seamless interoperability in 

NG9-1-1 environments.  




According to the National Emergency Number Association (NENA), the "i3 architecture standard is accepted and supported by industry and public safety practitioners around the world and is the universally-acknowledged basis for public safety deployments of NG9-1-1 systems."

The development and maintenance of relevant standards ensure networks, systems, applications and components can share and readily use information securely and effectively. A key to the success of Next Generation 911 (NG9-1-1) is the development and adoption of a common set of standards that will support interoperability across multiple emergency communications environments.


NENA’s i3 architecture is a non-proprietary, consensus-based standard that defines the network, components and interfaces required for a complete NG9-1-1 system. Industry and public safety practitioners around the world have worked diligently to develop both the i3 standard itself, and the broader family of NG9-1-1 standards built on the i3 architecture.


DDTI is committed to providing NG9-1-1 solutions that are fully compliant with current and future NENA i3 standards. We regularly participate in NENA’s Industry Collaboration Events (ICE) and serve on multiple technical committees developing relevant standards.